posted by Charlotte .
The transformation shown below can be accomplished in TWO reaction steps. From the following list, select the two reagents (or sets of reagents) which would most effectively bring about this conversion. Reagents:
1. Conc H2SO4/heat
4. (i) CH3MgI (ii) H3O+
6. (i) BH3 (ii) H2O2
10. (i) O3 (ii) Zn
Please enter the reagent number (from the above list) for each of the two steps in the following synthesis:
CH3-CH2-CHO (Step 1)-> (Step 2)-> CH3CH2COCH3